Yes, you can nominate a trusted person—such as a family member, friend, or partner—to assist with managing your Marshmallow car insurance policy. This is known as adding a Third Party Authority (TPA) or nominee.
Adding a nominee means they can speak to Marshmallow on your behalf and request changes to your policy, within set limits.
What can my nominee do?
Once a nominee has been added and verified, they can:
Use live chat to request mid-term adjustments (MTAs), such as:
Changing the insured vehicle
Updating your address or mileage
Adding a private registration plate
Ask general questions and discuss the policy with Marshmallow
Help with day-to-day policy management if you’re unavailable or need extra support
What can’t my nominee do?
Your nominee cannot:
Cancel your policy without your explicit permission
Change the email address on the policy
Authorise any change that increases your premium by more than £200 without your consent
For any adjustments above £200, our team will contact you directly to confirm before proceeding.
How do I add a nominee?
To nominate someone:
Contact our Customer Support team and let them know you’d like to add a nominee.
We’ll ask for both your and your nominee’s full details (including names, dates of birth, postcodes, and contact numbers).
We’ll then contact your nominee to confirm their consent.
Once verified, we’ll confirm with you and update your profile accordingly.
You can revoke this access at any time by contacting us.
How is a nominee verified?
When your nominee contacts Marshmallow, we’ll ask them to confirm:
Your name
Policy number
Date of birth
Postcode
We’ll also verify the nominee’s:
Full name
Date of birth
Postcode
Last 3 digits of their contact number
If they can’t provide this information, we won’t proceed with the conversation for security reasons.